Можно ли привести к знаменателю 60 дроби: 1/4; 1/7; 1/12; 1/22?молю​

1 a

2 an

3 a

4 an

5 a

1 - c2 - a3 - f4 - e5 - b

6 - d 

-our organise wants to   protect the environment.

-we fight against water and air    pollute

-are you unhappy with the ecological situate  in your region?  

-send us some inform about it and we`ll try to help. 

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